On 1/31/2020 3:33 AM, Radosław Korzeniewski wrote:

Amanda had "RAIT" since forever.


If you would be so kind and have an idea how it could be implemented in
bacula and so kind to describe it on this list it would be implemented by
developers.

I don't have any idea how it could be implemented *in bacula* since I never looked at any bacula code.

In general sending the same stream of bytes to two different places instead of one is not exactly rocket science. I guess it and can be implemented in several places, e.g. special storage inside SD, or two different SDs.

I would probably send to two SDs at once because it allows for more flexible setups: the 2nd SD can write to "the cloud", it can be on the off-site box, etc. Whereas amanda-style RAIT device only protects against single disk/tape failure.

Dima



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